, president obama is wrapping up his vacation on martha's vineyard today. he's actually spent so much of his time doing one of the things he loves to do, which is playing golf. >> yep. the president hit the links yesterday with comedian larry david. he played nine holes with the "seinfeld" co-creator and "curb your enthusiasm" star. must be a lot of fun playing with a comedian. rounding out the foursome were the boston celtics' hutchins and former u.s. trade executive ron kirk. >> i don't know, he can make fun of you a lot, though, right? >> that was my point. probably put you down quite a bit. >> because actually, the president, he's like a so-so golfer. >> is he? >> he likes doing it a lot. he's not the best, he's not terrible, but i think he plays with a lot of guys who might be better than him, so. >> he's got a lot on his mind. >> yeah, he does. >>> let's talk college football now. college football, where alabama's trying to do what no division 1 team in the modern era has ever done. >> which is win back-to-back national championships. joe carter is here with the the "bleacher report."